1240543204 has 24 divisors (see below), whose sum is σ = 2210292000. Its totient is φ = 609055680.

The previous prime is 1240543189. The next prime is 1240543207. The reversal of 1240543204 is 4023450421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1240543207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245059 + ... + 250069.

It is an arithmetic number, because the mean of its divisors is an integer number (92095500).

Almost surely, 2^1240543204 is an apocalyptic number.

It is an amenable number.

1240543204 is a deficient number, since it is larger than the sum of its proper divisors (969748796).

1240543204 is a wasteful number, since it uses less digits than its factorization.

1240543204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6123 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1240543204 is about 35221.3458573065. The cubic root of 1240543204 is about 1074.4939255585.

Adding to 1240543204 its reverse (4023450421), we get a palindrome (5263993625).

The spelling of 1240543204 in words is "one billion, two hundred forty million, five hundred forty-three thousand, two hundred four".